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Finding the Third Proportional to 8,712 and 13,964

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Solution

The third proportional to 8,712 and 13,964 is: 22,382.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712 : 13,964 = 13,964 : x
  2. Step 2: Convert to fraction form
    8,712/13,964 = 13,964/x
  3. Step 3: Cross multiply
    8,712x = 13,964 × 13,964
  4. Step 4: Simplify right side
    8,712x = 194,993,296
  5. Step 5: Solve for x
    x = 194,993,296/8,712
  6. Step 6: Final answer
    x = 22,382.15

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.